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The researchers from Paragraf and Queen Mary University of London demonstrated the fabrication of anOLED with a monolayer graphene anode. The journal Advanced Optical Materials has a new study in it.
The EU has a list of critical materials that include indium. Indium tin oxide (ITO) is a key component of the touch screens on our mobile phones and computers. Indium is used in flatscreen TVs, solar panels, as well as LED lights in our homes.
The research opens the door to a radical change in the potential of high-tech devices of the future by removing Indium.
Professor Colin Humphreys of Queen Mary and Paragraf says that there have been many attempts to replace ITO, but no material has been found to have a comparable performance in an electronic or optical device.
The first paper in the world to demonstrate that Graphene can replace ITO in an electronic/optical device is ours. We have shown that the performance of the ITO-OLED is the same as that of the Graphene-OLED. Ito-OLEDs are used as touch screens on mobile phones.
A single layer of carbon atoms is called graphene. Carbon is a sustainable material because it is abundant in the Earth.
Graphene was called the wonder material because of its amazing properties when it was discovered. Organizations such as IBM, Intel and SAMSUNG have been unable to scale up the growth of Graphene so that it can be used in electronic devices. Paragraf has developed a way to make large-area graphene.
There is more information about WaferScale Graphene Anodes Replace Indium Tin Oxide in Organic LightEmitting Diodes. There is a DOI: 10.1002/adom.
The journal contains information about advanced optical materials.
Graphene could replace rare metal used in mobile phone screens.
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